tritocerebrumWiktionary 原文构词拆分trito-前缀“third”one third · the third+cerebrum词根/词干词源说明From trito- (“third”) + cerebrum.释义（英文）名词 Noun(entomology) The third set of fused ganglia comprising the insect brain.词族派生词（1）tritocerebral相关词（2）protocerebrumdeutocerebrum